X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/542cf06a610bc430421351ace7a2cc45f393b990..a7cd4c052013b423c6301153f68c7fdbaa2a447b:/wp-includes/default-widgets.php

diff --git a/wp-includes/default-widgets.php b/wp-includes/default-widgets.php
index 2c9ec067..1bdadd8e 100644
--- a/wp-includes/default-widgets.php
+++ b/wp-includes/default-widgets.php
@@ -1,5 +1,4 @@
 <?php
-
 /**
  * Default Widgets
  *
@@ -14,37 +13,61 @@
  */
 class WP_Widget_Pages extends WP_Widget {
 
-	function WP_Widget_Pages() {
-		$widget_ops = array('classname' => 'widget_pages', 'description' => __( 'Your site&#8217;s WordPress Pages') );
-		$this->WP_Widget('pages', __('Pages'), $widget_ops);
+	public function __construct() {
+		$widget_ops = array('classname' => 'widget_pages', 'description' => __( 'A list of your site&#8217;s Pages.') );
+		parent::__construct('pages', __('Pages'), $widget_ops);
 	}
 
-	function widget( $args, $instance ) {
-		extract( $args );
+	public function widget( $args, $instance ) {
+
+		/**
+		 * Filter the widget title.
+		 *
+		 * @since 2.6.0
+		 *
+		 * @param string $title    The widget title. Default 'Pages'.
+		 * @param array  $instance An array of the widget's settings.
+		 * @param mixed  $id_base  The widget ID.
+		 */
+		$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? __( 'Pages' ) : $instance['title'], $instance, $this->id_base );
 
-		$title = apply_filters('widget_title', empty( $instance['title'] ) ? __( 'Pages' ) : $instance['title'], $instance, $this->id_base);
 		$sortby = empty( $instance['sortby'] ) ? 'menu_order' : $instance['sortby'];
 		$exclude = empty( $instance['exclude'] ) ? '' : $instance['exclude'];
 
 		if ( $sortby == 'menu_order' )
 			$sortby = 'menu_order, post_title';
 
-		$out = wp_list_pages( apply_filters('widget_pages_args', array('title_li' => '', 'echo' => 0, 'sort_column' => $sortby, 'exclude' => $exclude) ) );
-
-		if ( !empty( $out ) ) {
-			echo $before_widget;
-			if ( $title)
-				echo $before_title . $title . $after_title;
+		/**
+		 * Filter the arguments for the Pages widget.
+		 *
+		 * @since 2.8.0
+		 *
+		 * @see wp_list_pages()
+		 *
+		 * @param array $args An array of arguments to retrieve the pages list.
+		 */
+		$out = wp_list_pages( apply_filters( 'widget_pages_args', array(
+			'title_li'    => '',
+			'echo'        => 0,
+			'sort_column' => $sortby,
+			'exclude'     => $exclude
+		) ) );
+
+		if ( ! empty( $out ) ) {
+			echo $args['before_widget'];
+			if ( $title ) {
+				echo $args['before_title'] . $title . $args['after_title'];
+			}
 		?>
 		<ul>
 			<?php echo $out; ?>
 		</ul>
 		<?php
-			echo $after_widget;
+			echo $args['after_widget'];
 		}
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$instance = $old_instance;
 		$instance['title'] = strip_tags($new_instance['title']);
 		if ( in_array( $new_instance['sortby'], array( 'post_title', 'menu_order', 'ID' ) ) ) {
@@ -58,7 +81,7 @@ class WP_Widget_Pages extends WP_Widget {
 		return $instance;
 	}
 
-	function form( $instance ) {
+	public function form( $instance ) {
 		//Defaults
 		$instance = wp_parse_args( (array) $instance, array( 'sortby' => 'post_title', 'title' => '', 'exclude' => '') );
 		$title = esc_attr( $instance['title'] );
@@ -90,66 +113,90 @@ class WP_Widget_Pages extends WP_Widget {
  */
 class WP_Widget_Links extends WP_Widget {
 
-	function WP_Widget_Links() {
+	public function __construct() {
 		$widget_ops = array('description' => __( "Your blogroll" ) );
-		$this->WP_Widget('links', __('Links'), $widget_ops);
+		parent::__construct('links', __('Links'), $widget_ops);
 	}
 
-	function widget( $args, $instance ) {
-		extract($args, EXTR_SKIP);
+	public function widget( $args, $instance ) {
 
 		$show_description = isset($instance['description']) ? $instance['description'] : false;
 		$show_name = isset($instance['name']) ? $instance['name'] : false;
 		$show_rating = isset($instance['rating']) ? $instance['rating'] : false;
 		$show_images = isset($instance['images']) ? $instance['images'] : true;
 		$category = isset($instance['category']) ? $instance['category'] : false;
-
-		if ( is_admin() && !$category ) {
-			// Display All Links widget as such in the widgets screen
-			echo $before_widget . $before_title. __('All Links') . $after_title . $after_widget;
-			return;
-		}
-
-		$before_widget = preg_replace('/id="[^"]*"/','id="%id"', $before_widget);
-		wp_list_bookmarks(apply_filters('widget_links_args', array(
-			'title_before' => $before_title, 'title_after' => $after_title,
-			'category_before' => $before_widget, 'category_after' => $after_widget,
+		$orderby = isset( $instance['orderby'] ) ? $instance['orderby'] : 'name';
+		$order = $orderby == 'rating' ? 'DESC' : 'ASC';
+		$limit = isset( $instance['limit'] ) ? $instance['limit'] : -1;
+
+		$before_widget = preg_replace( '/id="[^"]*"/', 'id="%id"', $args['before_widget'] );
+
+		/**
+		 * Filter the arguments for the Links widget.
+		 *
+		 * @since 2.6.0
+		 *
+		 * @see wp_list_bookmarks()
+		 *
+		 * @param array $args An array of arguments to retrieve the links list.
+		 */
+		wp_list_bookmarks( apply_filters( 'widget_links_args', array(
+			'title_before' => $args['before_title'], 'title_after' => $args['after_title'],
+			'category_before' => $before_widget, 'category_after' => $args['after_widget'],
 			'show_images' => $show_images, 'show_description' => $show_description,
 			'show_name' => $show_name, 'show_rating' => $show_rating,
-			'category' => $category, 'class' => 'linkcat widget'
-		)));
+			'category' => $category, 'class' => 'linkcat widget',
+			'orderby' => $orderby, 'order' => $order,
+			'limit' => $limit,
+		) ) );
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$new_instance = (array) $new_instance;
-		$instance = array( 'images' => 0, 'name' => 0, 'description' => 0, 'rating' => 0);
+		$instance = array( 'images' => 0, 'name' => 0, 'description' => 0, 'rating' => 0 );
 		foreach ( $instance as $field => $val ) {
 			if ( isset($new_instance[$field]) )
 				$instance[$field] = 1;
 		}
-		$instance['category'] = intval($new_instance['category']);
+
+		$instance['orderby'] = 'name';
+		if ( in_array( $new_instance['orderby'], array( 'name', 'rating', 'id', 'rand' ) ) )
+			$instance['orderby'] = $new_instance['orderby'];
+
+		$instance['category'] = intval( $new_instance['category'] );
+		$instance['limit'] = ! empty( $new_instance['limit'] ) ? intval( $new_instance['limit'] ) : -1;
 
 		return $instance;
 	}
 
-	function form( $instance ) {
+	public function form( $instance ) {
 
 		//Defaults
-		$instance = wp_parse_args( (array) $instance, array( 'images' => true, 'name' => true, 'description' => false, 'rating' => false, 'category' => false ) );
-		$link_cats = get_terms( 'link_category');
+		$instance = wp_parse_args( (array) $instance, array( 'images' => true, 'name' => true, 'description' => false, 'rating' => false, 'category' => false, 'orderby' => 'name', 'limit' => -1 ) );
+		$link_cats = get_terms( 'link_category' );
+		if ( ! $limit = intval( $instance['limit'] ) )
+			$limit = -1;
 ?>
 		<p>
-		<label for="<?php echo $this->get_field_id('category'); ?>" class="screen-reader-text"><?php _e('Select Link Category'); ?></label>
+		<label for="<?php echo $this->get_field_id('category'); ?>"><?php _e( 'Select Link Category:' ); ?></label>
 		<select class="widefat" id="<?php echo $this->get_field_id('category'); ?>" name="<?php echo $this->get_field_name('category'); ?>">
-		<option value=""><?php _e('All Links'); ?></option>
+		<option value=""><?php _ex('All Links', 'links widget'); ?></option>
 		<?php
 		foreach ( $link_cats as $link_cat ) {
-			echo '<option value="' . intval($link_cat->term_id) . '"'
-				. ( $link_cat->term_id == $instance['category'] ? ' selected="selected"' : '' )
+			echo '<option value="' . intval( $link_cat->term_id ) . '"'
+				. selected( $instance['category'], $link_cat->term_id, false )
 				. '>' . $link_cat->name . "</option>\n";
 		}
 		?>
-		</select></p>
+		</select>
+		<label for="<?php echo $this->get_field_id('orderby'); ?>"><?php _e( 'Sort by:' ); ?></label>
+		<select name="<?php echo $this->get_field_name('orderby'); ?>" id="<?php echo $this->get_field_id('orderby'); ?>" class="widefat">
+			<option value="name"<?php selected( $instance['orderby'], 'name' ); ?>><?php _e( 'Link title' ); ?></option>
+			<option value="rating"<?php selected( $instance['orderby'], 'rating' ); ?>><?php _e( 'Link rating' ); ?></option>
+			<option value="id"<?php selected( $instance['orderby'], 'id' ); ?>><?php _e( 'Link ID' ); ?></option>
+			<option value="rand"<?php selected( $instance['orderby'], 'rand' ); ?>><?php _ex( 'Random', 'Links widget' ); ?></option>
+		</select>
+		</p>
 		<p>
 		<input class="checkbox" type="checkbox" <?php checked($instance['images'], true) ?> id="<?php echo $this->get_field_id('images'); ?>" name="<?php echo $this->get_field_name('images'); ?>" />
 		<label for="<?php echo $this->get_field_id('images'); ?>"><?php _e('Show Link Image'); ?></label><br />
@@ -160,6 +207,10 @@ class WP_Widget_Links extends WP_Widget {
 		<input class="checkbox" type="checkbox" <?php checked($instance['rating'], true) ?> id="<?php echo $this->get_field_id('rating'); ?>" name="<?php echo $this->get_field_name('rating'); ?>" />
 		<label for="<?php echo $this->get_field_id('rating'); ?>"><?php _e('Show Link Rating'); ?></label>
 		</p>
+		<p>
+		<label for="<?php echo $this->get_field_id('limit'); ?>"><?php _e( 'Number of links to show:' ); ?></label>
+		<input id="<?php echo $this->get_field_id('limit'); ?>" name="<?php echo $this->get_field_name('limit'); ?>" type="text" value="<?php echo $limit == -1 ? '' : intval( $limit ); ?>" size="3" />
+		</p>
 <?php
 	}
 }
@@ -171,26 +222,28 @@ class WP_Widget_Links extends WP_Widget {
  */
 class WP_Widget_Search extends WP_Widget {
 
-	function WP_Widget_Search() {
-		$widget_ops = array('classname' => 'widget_search', 'description' => __( "A search form for your site") );
-		$this->WP_Widget('search', __('Search'), $widget_ops);
+	public function __construct() {
+		$widget_ops = array('classname' => 'widget_search', 'description' => __( "A search form for your site.") );
+		parent::__construct( 'search', _x( 'Search', 'Search widget' ), $widget_ops );
 	}
 
-	function widget( $args, $instance ) {
-		extract($args);
-		$title = apply_filters('widget_title', $instance['title'], $instance, $this->id_base);
+	public function widget( $args, $instance ) {
 
-		echo $before_widget;
-		if ( $title )
-			echo $before_title . $title . $after_title;
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'], $instance, $this->id_base );
+
+		echo $args['before_widget'];
+		if ( $title ) {
+			echo $args['before_title'] . $title . $args['after_title'];
+		}
 
 		// Use current theme search form if it exists
 		get_search_form();
 
-		echo $after_widget;
+		echo $args['after_widget'];
 	}
 
-	function form( $instance ) {
+	public function form( $instance ) {
 		$instance = wp_parse_args( (array) $instance, array( 'title' => '') );
 		$title = $instance['title'];
 ?>
@@ -198,7 +251,7 @@ class WP_Widget_Search extends WP_Widget {
 <?php
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$instance = $old_instance;
 		$new_instance = wp_parse_args((array) $new_instance, array( 'title' => ''));
 		$instance['title'] = strip_tags($new_instance['title']);
@@ -214,37 +267,72 @@ class WP_Widget_Search extends WP_Widget {
  */
 class WP_Widget_Archives extends WP_Widget {
 
-	function WP_Widget_Archives() {
-		$widget_ops = array('classname' => 'widget_archive', 'description' => __( 'A monthly archive of your site&#8217;s posts') );
-		$this->WP_Widget('archives', __('Archives'), $widget_ops);
+	public function __construct() {
+		$widget_ops = array('classname' => 'widget_archive', 'description' => __( 'A monthly archive of your site&#8217;s Posts.') );
+		parent::__construct('archives', __('Archives'), $widget_ops);
 	}
 
-	function widget( $args, $instance ) {
-		extract($args);
-		$c = $instance['count'] ? '1' : '0';
-		$d = $instance['dropdown'] ? '1' : '0';
-		$title = apply_filters('widget_title', empty($instance['title']) ? __('Archives') : $instance['title'], $instance, $this->id_base);
+	public function widget( $args, $instance ) {
+		$c = ! empty( $instance['count'] ) ? '1' : '0';
+		$d = ! empty( $instance['dropdown'] ) ? '1' : '0';
 
-		echo $before_widget;
-		if ( $title )
-			echo $before_title . $title . $after_title;
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? __( 'Archives' ) : $instance['title'], $instance, $this->id_base );
+
+		echo $args['before_widget'];
+		if ( $title ) {
+			echo $args['before_title'] . $title . $args['after_title'];
+		}
 
 		if ( $d ) {
 ?>
-		<select name="archive-dropdown" onchange='document.location.href=this.options[this.selectedIndex].value;'> <option value=""><?php echo esc_attr(__('Select Month')); ?></option> <?php wp_get_archives(apply_filters('widget_archives_dropdown_args', array('type' => 'monthly', 'format' => 'option', 'show_post_count' => $c))); ?> </select>
+		<select name="archive-dropdown" onchange='document.location.href=this.options[this.selectedIndex].value;'>
+			<option value=""><?php esc_attr_e( 'Select Month' ); ?></option>
+
+			<?php
+			/**
+			 * Filter the arguments for the Archives widget drop-down.
+			 *
+			 * @since 2.8.0
+			 *
+			 * @see wp_get_archives()
+			 *
+			 * @param array $args An array of Archives widget drop-down arguments.
+			 */
+			wp_get_archives( apply_filters( 'widget_archives_dropdown_args', array(
+				'type'            => 'monthly',
+				'format'          => 'option',
+				'show_post_count' => $c
+			) ) );
+?>
+		</select>
 <?php
 		} else {
 ?>
 		<ul>
-		<?php wp_get_archives(apply_filters('widget_archives_args', array('type' => 'monthly', 'show_post_count' => $c))); ?>
+<?php
+		/**
+		 * Filter the arguments for the Archives widget.
+		 *
+		 * @since 2.8.0
+		 *
+		 * @see wp_get_archives()
+		 *
+		 * @param array $args An array of Archives option arguments.
+		 */
+		wp_get_archives( apply_filters( 'widget_archives_args', array(
+			'type'            => 'monthly',
+			'show_post_count' => $c
+		) ) );
+?>
 		</ul>
 <?php
 		}
 
-		echo $after_widget;
+		echo $args['after_widget'];
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$instance = $old_instance;
 		$new_instance = wp_parse_args( (array) $new_instance, array( 'title' => '', 'count' => 0, 'dropdown' => '') );
 		$instance['title'] = strip_tags($new_instance['title']);
@@ -254,7 +342,7 @@ class WP_Widget_Archives extends WP_Widget {
 		return $instance;
 	}
 
-	function form( $instance ) {
+	public function form( $instance ) {
 		$instance = wp_parse_args( (array) $instance, array( 'title' => '', 'count' => 0, 'dropdown' => '') );
 		$title = strip_tags($instance['title']);
 		$count = $instance['count'] ? 'checked="checked"' : '';
@@ -262,9 +350,9 @@ class WP_Widget_Archives extends WP_Widget {
 ?>
 		<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label> <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($title); ?>" /></p>
 		<p>
+			<input class="checkbox" type="checkbox" <?php echo $dropdown; ?> id="<?php echo $this->get_field_id('dropdown'); ?>" name="<?php echo $this->get_field_name('dropdown'); ?>" /> <label for="<?php echo $this->get_field_id('dropdown'); ?>"><?php _e('Display as dropdown'); ?></label>
+			<br/>
 			<input class="checkbox" type="checkbox" <?php echo $count; ?> id="<?php echo $this->get_field_id('count'); ?>" name="<?php echo $this->get_field_name('count'); ?>" /> <label for="<?php echo $this->get_field_id('count'); ?>"><?php _e('Show post counts'); ?></label>
-			<br />
-			<input class="checkbox" type="checkbox" <?php echo $dropdown; ?> id="<?php echo $this->get_field_id('dropdown'); ?>" name="<?php echo $this->get_field_name('dropdown'); ?>" /> <label for="<?php echo $this->get_field_id('dropdown'); ?>"><?php _e('Display as a drop down'); ?></label>
 		</p>
 <?php
 	}
@@ -279,39 +367,55 @@ class WP_Widget_Archives extends WP_Widget {
  */
 class WP_Widget_Meta extends WP_Widget {
 
-	function WP_Widget_Meta() {
-		$widget_ops = array('classname' => 'widget_meta', 'description' => __( "Log in/out, admin, feed and WordPress links") );
-		$this->WP_Widget('meta', __('Meta'), $widget_ops);
+	public function __construct() {
+		$widget_ops = array('classname' => 'widget_meta', 'description' => __( "Login, RSS, &amp; WordPress.org links.") );
+		parent::__construct('meta', __('Meta'), $widget_ops);
 	}
 
-	function widget( $args, $instance ) {
-		extract($args);
-		$title = apply_filters('widget_title', empty($instance['title']) ? __('Meta') : $instance['title'], $instance, $this->id_base);
+	public function widget( $args, $instance ) {
 
-		echo $before_widget;
-		if ( $title )
-			echo $before_title . $title . $after_title;
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$title = apply_filters( 'widget_title', empty($instance['title']) ? __( 'Meta' ) : $instance['title'], $instance, $this->id_base );
+
+		echo $args['before_widget'];
+		if ( $title ) {
+			echo $args['before_title'] . $title . $args['after_title'];
+		}
 ?>
 			<ul>
 			<?php wp_register(); ?>
 			<li><?php wp_loginout(); ?></li>
-			<li><a href="<?php bloginfo('rss2_url'); ?>" title="<?php echo esc_attr(__('Syndicate this site using RSS 2.0')); ?>"><?php _e('Entries <abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>
-			<li><a href="<?php bloginfo('comments_rss2_url'); ?>" title="<?php echo esc_attr(__('The latest comments to all posts in RSS')); ?>"><?php _e('Comments <abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>
-			<li><a href="http://wordpress.org/" title="<?php echo esc_attr(__('Powered by WordPress, state-of-the-art semantic personal publishing platform.')); ?>">WordPress.org</a></li>
-			<?php wp_meta(); ?>
+			<li><a href="<?php bloginfo('rss2_url'); ?>"><?php _e('Entries <abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>
+			<li><a href="<?php bloginfo('comments_rss2_url'); ?>"><?php _e('Comments <abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>
+<?php
+			/**
+			 * Filter the "Powered by WordPress" text in the Meta widget.
+			 *
+			 * @since 3.6.0
+			 *
+			 * @param string $title_text Default title text for the WordPress.org link.
+			 */
+			echo apply_filters( 'widget_meta_poweredby', sprintf( '<li><a href="%s" title="%s">%s</a></li>',
+				esc_url( __( 'https://wordpress.org/' ) ),
+				esc_attr__( 'Powered by WordPress, state-of-the-art semantic personal publishing platform.' ),
+				_x( 'WordPress.org', 'meta widget link text' )
+			) );
+
+			wp_meta();
+?>
 			</ul>
 <?php
-		echo $after_widget;
+		echo $args['after_widget'];
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$instance = $old_instance;
 		$instance['title'] = strip_tags($new_instance['title']);
 
 		return $instance;
 	}
 
-	function form( $instance ) {
+	public function form( $instance ) {
 		$instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );
 		$title = strip_tags($instance['title']);
 ?>
@@ -327,31 +431,34 @@ class WP_Widget_Meta extends WP_Widget {
  */
 class WP_Widget_Calendar extends WP_Widget {
 
-	function WP_Widget_Calendar() {
-		$widget_ops = array('classname' => 'widget_calendar', 'description' => __( 'A calendar of your site&#8217;s posts') );
-		$this->WP_Widget('calendar', __('Calendar'), $widget_ops);
+	public function __construct() {
+		$widget_ops = array('classname' => 'widget_calendar', 'description' => __( 'A calendar of your site&#8217;s Posts.') );
+		parent::__construct('calendar', __('Calendar'), $widget_ops);
 	}
 
-	function widget( $args, $instance ) {
-		extract($args);
-		$title = apply_filters('widget_title', empty($instance['title']) ? '&nbsp;' : $instance['title'], $instance, $this->id_base);
-		echo $before_widget;
-		if ( $title )
-			echo $before_title . $title . $after_title;
+	public function widget( $args, $instance ) {
+
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'], $instance, $this->id_base );
+
+		echo $args['before_widget'];
+		if ( $title ) {
+			echo $args['before_title'] . $title . $args['after_title'];
+		}
 		echo '<div id="calendar_wrap">';
 		get_calendar();
 		echo '</div>';
-		echo $after_widget;
+		echo $args['after_widget'];
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$instance = $old_instance;
 		$instance['title'] = strip_tags($new_instance['title']);
 
 		return $instance;
 	}
 
-	function form( $instance ) {
+	public function form( $instance ) {
 		$instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );
 		$title = strip_tags($instance['title']);
 ?>
@@ -368,24 +475,36 @@ class WP_Widget_Calendar extends WP_Widget {
  */
 class WP_Widget_Text extends WP_Widget {
 
-	function WP_Widget_Text() {
-		$widget_ops = array('classname' => 'widget_text', 'description' => __('Arbitrary text or HTML'));
+	public function __construct() {
+		$widget_ops = array('classname' => 'widget_text', 'description' => __('Arbitrary text or HTML.'));
 		$control_ops = array('width' => 400, 'height' => 350);
-		$this->WP_Widget('text', __('Text'), $widget_ops, $control_ops);
+		parent::__construct('text', __('Text'), $widget_ops, $control_ops);
 	}
 
-	function widget( $args, $instance ) {
-		extract($args);
-		$title = apply_filters( 'widget_title', empty($instance['title']) ? '' : $instance['title'], $instance, $this->id_base);
-		$text = apply_filters( 'widget_text', $instance['text'], $instance );
-		echo $before_widget;
-		if ( !empty( $title ) ) { echo $before_title . $title . $after_title; } ?>
-			<div class="textwidget"><?php echo $instance['filter'] ? wpautop($text) : $text; ?></div>
+	public function widget( $args, $instance ) {
+
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'], $instance, $this->id_base );
+
+		/**
+		 * Filter the content of the Text widget.
+		 *
+		 * @since 2.3.0
+		 *
+		 * @param string    $widget_text The widget content.
+		 * @param WP_Widget $instance    WP_Widget instance.
+		 */
+		$text = apply_filters( 'widget_text', empty( $instance['text'] ) ? '' : $instance['text'], $instance );
+		echo $args['before_widget'];
+		if ( ! empty( $title ) ) {
+			echo $args['before_title'] . $title . $args['after_title'];
+		} ?>
+			<div class="textwidget"><?php echo !empty( $instance['filter'] ) ? wpautop( $text ) : $text; ?></div>
 		<?php
-		echo $after_widget;
+		echo $args['after_widget'];
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$instance = $old_instance;
 		$instance['title'] = strip_tags($new_instance['title']);
 		if ( current_user_can('unfiltered_html') )
@@ -396,10 +515,10 @@ class WP_Widget_Text extends WP_Widget {
 		return $instance;
 	}
 
-	function form( $instance ) {
+	public function form( $instance ) {
 		$instance = wp_parse_args( (array) $instance, array( 'title' => '', 'text' => '' ) );
 		$title = strip_tags($instance['title']);
-		$text = format_to_edit($instance['text']);
+		$text = esc_textarea($instance['text']);
 ?>
 		<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label>
 		<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($title); ?>" /></p>
@@ -418,28 +537,40 @@ class WP_Widget_Text extends WP_Widget {
  */
 class WP_Widget_Categories extends WP_Widget {
 
-	function WP_Widget_Categories() {
-		$widget_ops = array( 'classname' => 'widget_categories', 'description' => __( "A list or dropdown of categories" ) );
-		$this->WP_Widget('categories', __('Categories'), $widget_ops);
+	public function __construct() {
+		$widget_ops = array( 'classname' => 'widget_categories', 'description' => __( "A list or dropdown of categories." ) );
+		parent::__construct('categories', __('Categories'), $widget_ops);
 	}
 
-	function widget( $args, $instance ) {
-		extract( $args );
+	public function widget( $args, $instance ) {
 
-		$title = apply_filters('widget_title', empty( $instance['title'] ) ? __( 'Categories' ) : $instance['title'], $instance, $this->id_base);
-		$c = $instance['count'] ? '1' : '0';
-		$h = $instance['hierarchical'] ? '1' : '0';
-		$d = $instance['dropdown'] ? '1' : '0';
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? __( 'Categories' ) : $instance['title'], $instance, $this->id_base );
 
-		echo $before_widget;
-		if ( $title )
-			echo $before_title . $title . $after_title;
+		$c = ! empty( $instance['count'] ) ? '1' : '0';
+		$h = ! empty( $instance['hierarchical'] ) ? '1' : '0';
+		$d = ! empty( $instance['dropdown'] ) ? '1' : '0';
+
+		echo $args['before_widget'];
+		if ( $title ) {
+			echo $args['before_title'] . $title . $args['after_title'];
+		}
 
 		$cat_args = array('orderby' => 'name', 'show_count' => $c, 'hierarchical' => $h);
 
 		if ( $d ) {
 			$cat_args['show_option_none'] = __('Select Category');
-			wp_dropdown_categories(apply_filters('widget_categories_dropdown_args', $cat_args));
+
+			/**
+			 * Filter the arguments for the Categories widget drop-down.
+			 *
+			 * @since 2.8.0
+			 *
+			 * @see wp_dropdown_categories()
+			 *
+			 * @param array $cat_args An array of Categories widget drop-down arguments.
+			 */
+			wp_dropdown_categories( apply_filters( 'widget_categories_dropdown_args', $cat_args ) );
 ?>
 
 <script type='text/javascript'>
@@ -460,16 +591,24 @@ class WP_Widget_Categories extends WP_Widget {
 		<ul>
 <?php
 		$cat_args['title_li'] = '';
-		wp_list_categories(apply_filters('widget_categories_args', $cat_args));
+
+		/**
+		 * Filter the arguments for the Categories widget.
+		 *
+		 * @since 2.8.0
+		 *
+		 * @param array $cat_args An array of Categories widget options.
+		 */
+		wp_list_categories( apply_filters( 'widget_categories_args', $cat_args ) );
 ?>
 		</ul>
 <?php
 		}
 
-		echo $after_widget;
+		echo $args['after_widget'];
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$instance = $old_instance;
 		$instance['title'] = strip_tags($new_instance['title']);
 		$instance['count'] = !empty($new_instance['count']) ? 1 : 0;
@@ -479,7 +618,7 @@ class WP_Widget_Categories extends WP_Widget {
 		return $instance;
 	}
 
-	function form( $instance ) {
+	public function form( $instance ) {
 		//Defaults
 		$instance = wp_parse_args( (array) $instance, array( 'title' => '') );
 		$title = esc_attr( $instance['title'] );
@@ -491,7 +630,7 @@ class WP_Widget_Categories extends WP_Widget {
 		<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" /></p>
 
 		<p><input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id('dropdown'); ?>" name="<?php echo $this->get_field_name('dropdown'); ?>"<?php checked( $dropdown ); ?> />
-		<label for="<?php echo $this->get_field_id('dropdown'); ?>"><?php _e( 'Show as dropdown' ); ?></label><br />
+		<label for="<?php echo $this->get_field_id('dropdown'); ?>"><?php _e( 'Display as dropdown' ); ?></label><br />
 
 		<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id('count'); ?>" name="<?php echo $this->get_field_name('count'); ?>"<?php checked( $count ); ?> />
 		<label for="<?php echo $this->get_field_id('count'); ?>"><?php _e( 'Show post counts' ); ?></label><br />
@@ -510,63 +649,99 @@ class WP_Widget_Categories extends WP_Widget {
  */
 class WP_Widget_Recent_Posts extends WP_Widget {
 
-	function WP_Widget_Recent_Posts() {
-		$widget_ops = array('classname' => 'widget_recent_entries', 'description' => __( "The most recent posts on your site") );
-		$this->WP_Widget('recent-posts', __('Recent Posts'), $widget_ops);
+	public function __construct() {
+		$widget_ops = array('classname' => 'widget_recent_entries', 'description' => __( "Your site&#8217;s most recent Posts.") );
+		parent::__construct('recent-posts', __('Recent Posts'), $widget_ops);
 		$this->alt_option_name = 'widget_recent_entries';
 
-		add_action( 'save_post', array(&$this, 'flush_widget_cache') );
-		add_action( 'deleted_post', array(&$this, 'flush_widget_cache') );
-		add_action( 'switch_theme', array(&$this, 'flush_widget_cache') );
+		add_action( 'save_post', array($this, 'flush_widget_cache') );
+		add_action( 'deleted_post', array($this, 'flush_widget_cache') );
+		add_action( 'switch_theme', array($this, 'flush_widget_cache') );
 	}
 
-	function widget($args, $instance) {
-		$cache = wp_cache_get('widget_recent_posts', 'widget');
+	public function widget($args, $instance) {
+		$cache = array();
+		if ( ! $this->is_preview() ) {
+			$cache = wp_cache_get( 'widget_recent_posts', 'widget' );
+		}
 
-		if ( !is_array($cache) )
+		if ( ! is_array( $cache ) ) {
 			$cache = array();
+		}
+
+		if ( ! isset( $args['widget_id'] ) ) {
+			$args['widget_id'] = $this->id;
+		}
 
-		if ( isset($cache[$args['widget_id']]) ) {
-			echo $cache[$args['widget_id']];
+		if ( isset( $cache[ $args['widget_id'] ] ) ) {
+			echo $cache[ $args['widget_id'] ];
 			return;
 		}
 
 		ob_start();
-		extract($args);
 
-		$title = apply_filters('widget_title', empty($instance['title']) ? __('Recent Posts') : $instance['title'], $instance, $this->id_base);
-		if ( !$number = (int) $instance['number'] )
-			$number = 10;
-		else if ( $number < 1 )
-			$number = 1;
-		else if ( $number > 15 )
-			$number = 15;
+		$title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : __( 'Recent Posts' );
+
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
+
+		$number = ( ! empty( $instance['number'] ) ) ? absint( $instance['number'] ) : 5;
+		if ( ! $number )
+			$number = 5;
+		$show_date = isset( $instance['show_date'] ) ? $instance['show_date'] : false;
+
+		/**
+		 * Filter the arguments for the Recent Posts widget.
+		 *
+		 * @since 3.4.0
+		 *
+		 * @see WP_Query::get_posts()
+		 *
+		 * @param array $args An array of arguments used to retrieve the recent posts.
+		 */
+		$r = new WP_Query( apply_filters( 'widget_posts_args', array(
+			'posts_per_page'      => $number,
+			'no_found_rows'       => true,
+			'post_status'         => 'publish',
+			'ignore_sticky_posts' => true
+		) ) );
 
-		$r = new WP_Query(array('showposts' => $number, 'nopaging' => 0, 'post_status' => 'publish', 'caller_get_posts' => 1));
 		if ($r->have_posts()) :
 ?>
-		<?php echo $before_widget; ?>
-		<?php if ( $title ) echo $before_title . $title . $after_title; ?>
+		<?php echo $args['before_widget']; ?>
+		<?php if ( $title ) {
+			echo $args['before_title'] . $title . $args['after_title'];
+		} ?>
 		<ul>
-		<?php  while ($r->have_posts()) : $r->the_post(); ?>
-		<li><a href="<?php the_permalink() ?>" title="<?php echo esc_attr(get_the_title() ? get_the_title() : get_the_ID()); ?>"><?php if ( get_the_title() ) the_title(); else the_ID(); ?></a></li>
+		<?php while ( $r->have_posts() ) : $r->the_post(); ?>
+			<li>
+				<a href="<?php the_permalink(); ?>"><?php get_the_title() ? the_title() : the_ID(); ?></a>
+			<?php if ( $show_date ) : ?>
+				<span class="post-date"><?php echo get_the_date(); ?></span>
+			<?php endif; ?>
+			</li>
 		<?php endwhile; ?>
 		</ul>
-		<?php echo $after_widget; ?>
+		<?php echo $args['after_widget']; ?>
 <?php
 		// Reset the global $the_post as this query will have stomped on it
 		wp_reset_postdata();
 
 		endif;
 
-		$cache[$args['widget_id']] = ob_get_flush();
-		wp_cache_set('widget_recent_posts', $cache, 'widget');
+		if ( ! $this->is_preview() ) {
+			$cache[ $args['widget_id'] ] = ob_get_flush();
+			wp_cache_set( 'widget_recent_posts', $cache, 'widget' );
+		} else {
+			ob_end_flush();
+		}
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$instance = $old_instance;
 		$instance['title'] = strip_tags($new_instance['title']);
 		$instance['number'] = (int) $new_instance['number'];
+		$instance['show_date'] = isset( $new_instance['show_date'] ) ? (bool) $new_instance['show_date'] : false;
 		$this->flush_widget_cache();
 
 		$alloptions = wp_cache_get( 'alloptions', 'options' );
@@ -576,20 +751,23 @@ class WP_Widget_Recent_Posts extends WP_Widget {
 		return $instance;
 	}
 
-	function flush_widget_cache() {
+	public function flush_widget_cache() {
 		wp_cache_delete('widget_recent_posts', 'widget');
 	}
 
-	function form( $instance ) {
-		$title = isset($instance['title']) ? esc_attr($instance['title']) : '';
-		if ( !isset($instance['number']) || !$number = (int) $instance['number'] )
-			$number = 5;
+	public function form( $instance ) {
+		$title     = isset( $instance['title'] ) ? esc_attr( $instance['title'] ) : '';
+		$number    = isset( $instance['number'] ) ? absint( $instance['number'] ) : 5;
+		$show_date = isset( $instance['show_date'] ) ? (bool) $instance['show_date'] : false;
 ?>
-		<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label>
-		<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" /></p>
+		<p><label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
+		<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo $title; ?>" /></p>
+
+		<p><label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of posts to show:' ); ?></label>
+		<input id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="text" value="<?php echo $number; ?>" size="3" /></p>
 
-		<p><label for="<?php echo $this->get_field_id('number'); ?>"><?php _e('Number of posts to show:'); ?></label>
-		<input id="<?php echo $this->get_field_id('number'); ?>" name="<?php echo $this->get_field_name('number'); ?>" type="text" value="<?php echo $number; ?>" size="3" /></p>
+		<p><input class="checkbox" type="checkbox" <?php checked( $show_date ); ?> id="<?php echo $this->get_field_id( 'show_date' ); ?>" name="<?php echo $this->get_field_name( 'show_date' ); ?>" />
+		<label for="<?php echo $this->get_field_id( 'show_date' ); ?>"><?php _e( 'Display post date?' ); ?></label></p>
 <?php
 	}
 }
@@ -601,72 +779,122 @@ class WP_Widget_Recent_Posts extends WP_Widget {
  */
 class WP_Widget_Recent_Comments extends WP_Widget {
 
-	function WP_Widget_Recent_Comments() {
-		$widget_ops = array('classname' => 'widget_recent_comments', 'description' => __( 'The most recent comments' ) );
-		$this->WP_Widget('recent-comments', __('Recent Comments'), $widget_ops);
+	public function __construct() {
+		$widget_ops = array('classname' => 'widget_recent_comments', 'description' => __( 'Your site&#8217;s most recent comments.' ) );
+		parent::__construct('recent-comments', __('Recent Comments'), $widget_ops);
 		$this->alt_option_name = 'widget_recent_comments';
 
 		if ( is_active_widget(false, false, $this->id_base) )
-			add_action( 'wp_head', array(&$this, 'recent_comments_style') );
+			add_action( 'wp_head', array($this, 'recent_comments_style') );
 
-		add_action( 'comment_post', array(&$this, 'flush_widget_cache') );
-		add_action( 'transition_comment_status', array(&$this, 'flush_widget_cache') );
+		add_action( 'comment_post', array($this, 'flush_widget_cache') );
+		add_action( 'edit_comment', array($this, 'flush_widget_cache') );
+		add_action( 'transition_comment_status', array($this, 'flush_widget_cache') );
 	}
 
-	function recent_comments_style() { ?>
+	public function recent_comments_style() {
+
+		/**
+		 * Filter the Recent Comments default widget styles.
+		 *
+		 * @since 3.1.0
+		 *
+		 * @param bool   $active  Whether the widget is active. Default true.
+		 * @param string $id_base The widget ID.
+		 */
+		if ( ! current_theme_supports( 'widgets' ) // Temp hack #14876
+			|| ! apply_filters( 'show_recent_comments_widget_style', true, $this->id_base ) )
+			return;
+		?>
 	<style type="text/css">.recentcomments a{display:inline !important;padding:0 !important;margin:0 !important;}</style>
 <?php
 	}
 
-	function flush_widget_cache() {
+	public function flush_widget_cache() {
 		wp_cache_delete('widget_recent_comments', 'widget');
 	}
 
-	function widget( $args, $instance ) {
+	public function widget( $args, $instance ) {
 		global $comments, $comment;
 
-		$cache = wp_cache_get('widget_recent_comments', 'widget');
-
-		if ( ! is_array( $cache ) )
+		$cache = array();
+		if ( ! $this->is_preview() ) {
+			$cache = wp_cache_get('widget_recent_comments', 'widget');
+		}
+		if ( ! is_array( $cache ) ) {
 			$cache = array();
+		}
+
+		if ( ! isset( $args['widget_id'] ) )
+			$args['widget_id'] = $this->id;
 
-		if ( isset( $cache[$args['widget_id']] ) ) {
-			echo $cache[$args['widget_id']];
+		if ( isset( $cache[ $args['widget_id'] ] ) ) {
+			echo $cache[ $args['widget_id'] ];
 			return;
 		}
 
- 		extract($args, EXTR_SKIP);
- 		$output = '';
- 		$title = apply_filters('widget_title', empty($instance['title']) ? __('Recent Comments') : $instance['title']);
+		$output = '';
 
-		if ( ! $number = (int) $instance['number'] )
- 			$number = 5;
- 		else if ( $number < 1 )
- 			$number = 1;
+		$title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : __( 'Recent Comments' );
 
-		$comments = get_comments( array( 'number' => $number, 'status' => 'approve' ) );
-		$output .= $before_widget;
-		if ( $title )
-			$output .= $before_title . $title . $after_title;
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
+
+		$number = ( ! empty( $instance['number'] ) ) ? absint( $instance['number'] ) : 5;
+		if ( ! $number )
+			$number = 5;
+
+		/**
+		 * Filter the arguments for the Recent Comments widget.
+		 *
+		 * @since 3.4.0
+		 *
+		 * @see WP_Comment_Query::query() for information on accepted arguments.
+		 *
+		 * @param array $comment_args An array of arguments used to retrieve the recent comments.
+		 */
+		$comments = get_comments( apply_filters( 'widget_comments_args', array(
+			'number'      => $number,
+			'status'      => 'approve',
+			'post_status' => 'publish'
+		) ) );
+
+		$output .= $args['before_widget'];
+		if ( $title ) {
+			$output .= $args['before_title'] . $title . $args['after_title'];
+		}
 
 		$output .= '<ul id="recentcomments">';
 		if ( $comments ) {
+			// Prime cache for associated posts. (Prime post term cache if we need it for permalinks.)
+			$post_ids = array_unique( wp_list_pluck( $comments, 'comment_post_ID' ) );
+			_prime_post_caches( $post_ids, strpos( get_option( 'permalink_structure' ), '%category%' ), false );
+
 			foreach ( (array) $comments as $comment) {
-				$output .=  '<li class="recentcomments">' . /* translators: comments widget: 1: comment author, 2: post link */ sprintf(_x('%1$s on %2$s', 'widgets'), get_comment_author_link(), '<a href="' . esc_url( get_comment_link($comment->comment_ID) ) . '">' . get_the_title($comment->comment_post_ID) . '</a>') . '</li>';
+				$output .= '<li class="recentcomments">';
+				/* translators: comments widget: 1: comment author, 2: post link */
+				$output .= sprintf( _x( '%1$s on %2$s', 'widgets' ),
+					'<span class="comment-author-link">' . get_comment_author_link() . '</span>',
+					'<a href="' . esc_url( get_comment_link( $comment->comment_ID ) ) . '">' . get_the_title( $comment->comment_post_ID ) . '</a>'
+				);
+				$output .= '</li>';
 			}
- 		}
+		}
 		$output .= '</ul>';
-		$output .= $after_widget;
+		$output .= $args['after_widget'];
 
 		echo $output;
-		$cache[$args['widget_id']] = $output;
-		wp_cache_set('widget_recent_comments', $cache, 'widget');
+
+		if ( ! $this->is_preview() ) {
+			$cache[ $args['widget_id'] ] = $output;
+			wp_cache_set( 'widget_recent_comments', $cache, 'widget' );
+		}
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$instance = $old_instance;
 		$instance['title'] = strip_tags($new_instance['title']);
-		$instance['number'] = (int) $new_instance['number'];
+		$instance['number'] = absint( $new_instance['number'] );
 		$this->flush_widget_cache();
 
 		$alloptions = wp_cache_get( 'alloptions', 'options' );
@@ -676,15 +904,15 @@ class WP_Widget_Recent_Comments extends WP_Widget {
 		return $instance;
 	}
 
-	function form( $instance ) {
-		$title = isset($instance['title']) ? esc_attr($instance['title']) : '';
-		$number = isset($instance['number']) ? absint($instance['number']) : 5;
+	public function form( $instance ) {
+		$title  = isset( $instance['title'] ) ? esc_attr( $instance['title'] ) : '';
+		$number = isset( $instance['number'] ) ? absint( $instance['number'] ) : 5;
 ?>
-		<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label>
-		<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" /></p>
+		<p><label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
+		<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo $title; ?>" /></p>
 
-		<p><label for="<?php echo $this->get_field_id('number'); ?>"><?php _e('Number of comments to show:'); ?></label>
-		<input id="<?php echo $this->get_field_id('number'); ?>" name="<?php echo $this->get_field_name('number'); ?>" type="text" value="<?php echo $number; ?>" size="3" /></p>
+		<p><label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of comments to show:' ); ?></label>
+		<input id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="text" value="<?php echo $number; ?>" size="3" /></p>
 <?php
 	}
 }
@@ -696,26 +924,28 @@ class WP_Widget_Recent_Comments extends WP_Widget {
  */
 class WP_Widget_RSS extends WP_Widget {
 
-	function WP_Widget_RSS() {
-		$widget_ops = array( 'description' => __('Entries from any RSS or Atom feed') );
+	public function __construct() {
+		$widget_ops = array( 'description' => __('Entries from any RSS or Atom feed.') );
 		$control_ops = array( 'width' => 400, 'height' => 200 );
-		$this->WP_Widget( 'rss', __('RSS'), $widget_ops, $control_ops );
+		parent::__construct( 'rss', __('RSS'), $widget_ops, $control_ops );
 	}
 
-	function widget($args, $instance) {
+	public function widget($args, $instance) {
 
 		if ( isset($instance['error']) && $instance['error'] )
 			return;
 
-		extract($args, EXTR_SKIP);
-
-		$url = $instance['url'];
+		$url = ! empty( $instance['url'] ) ? $instance['url'] : '';
 		while ( stristr($url, 'http') != $url )
 			$url = substr($url, 1);
 
 		if ( empty($url) )
 			return;
 
+		// self-url destruction sequence
+		if ( in_array( untrailingslashit( $url ), array( site_url(), home_url() ) ) )
+			return;
+
 		$rss = fetch_feed($url);
 		$title = $instance['title'];
 		$desc = '';
@@ -733,29 +963,32 @@ class WP_Widget_RSS extends WP_Widget {
 		if ( empty($title) )
 			$title = empty($desc) ? __('Unknown Feed') : $desc;
 
-		$title = apply_filters('widget_title', $title, $instance, $this->id_base);
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
+
 		$url = esc_url(strip_tags($url));
 		$icon = includes_url('images/rss.png');
 		if ( $title )
-			$title = "<a class='rsswidget' href='$url' title='" . esc_attr__( 'Syndicate this content' ) ."'><img style='border:0' width='14' height='14' src='$icon' alt='RSS' /></a> <a class='rsswidget' href='$link' title='$desc'>$title</a>";
+			$title = "<a class='rsswidget' href='$url'><img style='border:0' width='14' height='14' src='$icon' alt='RSS' /></a> <a class='rsswidget' href='$link'>$title</a>";
 
-		echo $before_widget;
-		if ( $title )
-			echo $before_title . $title . $after_title;
+		echo $args['before_widget'];
+		if ( $title ) {
+			echo $args['before_title'] . $title . $args['after_title'];
+		}
 		wp_widget_rss_output( $rss, $instance );
-		echo $after_widget;
+		echo $args['after_widget'];
 
 		if ( ! is_wp_error($rss) )
 			$rss->__destruct();
 		unset($rss);
 	}
 
-	function update($new_instance, $old_instance) {
-		$testurl = ( isset($new_instance['url']) && ($new_instance['url'] != $old_instance['url']) );
+	public function update($new_instance, $old_instance) {
+		$testurl = ( isset( $new_instance['url'] ) && ( !isset( $old_instance['url'] ) || ( $new_instance['url'] != $old_instance['url'] ) ) );
 		return wp_widget_rss_process( $new_instance, $testurl );
 	}
 
-	function form($instance) {
+	public function form($instance) {
 
 		if ( empty($instance) )
 			$instance = array( 'title' => '', 'url' => '', 'items' => 10, 'error' => false, 'show_summary' => 0, 'show_author' => 0, 'show_date' => 0 );
@@ -789,60 +1022,57 @@ function wp_widget_rss_output( $rss, $args = array() ) {
 		return;
 	}
 
-	$default_args = array( 'show_author' => 0, 'show_date' => 0, 'show_summary' => 0 );
+	$default_args = array( 'show_author' => 0, 'show_date' => 0, 'show_summary' => 0, 'items' => 0 );
 	$args = wp_parse_args( $args, $default_args );
-	extract( $args, EXTR_SKIP );
 
-	$items = (int) $items;
+	$items = (int) $args['items'];
 	if ( $items < 1 || 20 < $items )
 		$items = 10;
-	$show_summary  = (int) $show_summary;
-	$show_author   = (int) $show_author;
-	$show_date     = (int) $show_date;
+	$show_summary  = (int) $args['show_summary'];
+	$show_author   = (int) $args['show_author'];
+	$show_date     = (int) $args['show_date'];
 
 	if ( !$rss->get_item_quantity() ) {
-		echo '<ul><li>' . __( 'An error has occurred; the feed is probably down. Try again later.' ) . '</li></ul>';
+		echo '<ul><li>' . __( 'An error has occurred, which probably means the feed is down. Try again later.' ) . '</li></ul>';
 		$rss->__destruct();
 		unset($rss);
 		return;
 	}
 
 	echo '<ul>';
-	foreach ( $rss->get_items(0, $items) as $item ) {
+	foreach ( $rss->get_items( 0, $items ) as $item ) {
 		$link = $item->get_link();
-		while ( stristr($link, 'http') != $link )
-			$link = substr($link, 1);
-		$link = esc_url(strip_tags($link));
-		$title = esc_attr(strip_tags($item->get_title()));
-		if ( empty($title) )
-			$title = __('Untitled');
-
-		$desc = str_replace( array("\n", "\r"), ' ', esc_attr( strip_tags( @html_entity_decode( $item->get_description(), ENT_QUOTES, get_option('blog_charset') ) ) ) );
-		$desc = wp_html_excerpt( $desc, 360 );
+		while ( stristr( $link, 'http' ) != $link ) {
+			$link = substr( $link, 1 );
+		}
+		$link = esc_url( strip_tags( $link ) );
 
-		// Append ellipsis. Change existing [...] to [&hellip;].
-		if ( '[...]' == substr( $desc, -5 ) )
-			$desc = substr( $desc, 0, -5 ) . '[&hellip;]';
-		elseif ( '[&hellip;]' != substr( $desc, -10 ) )
-			$desc .= ' [&hellip;]';
+		$title = esc_html( trim( strip_tags( $item->get_title() ) ) );
+		if ( empty( $title ) ) {
+			$title = __( 'Untitled' );
+		}
 
-		$desc = esc_html( $desc );
+		$desc = @html_entity_decode( $item->get_description(), ENT_QUOTES, get_option( 'blog_charset' ) );
+		$desc = esc_attr( wp_trim_words( $desc, 55, ' [&hellip;]' ) );
 
+		$summary = '';
 		if ( $show_summary ) {
-			$summary = "<div class='rssSummary'>$desc</div>";
-		} else {
-			$summary = '';
+			$summary = $desc;
+
+			// Change existing [...] to [&hellip;].
+			if ( '[...]' == substr( $summary, -5 ) ) {
+				$summary = substr( $summary, 0, -5 ) . '[&hellip;]';
+			}
+
+			$summary = '<div class="rssSummary">' . esc_html( $summary ) . '</div>';
 		}
 
 		$date = '';
 		if ( $show_date ) {
-			$date = $item->get_date();
+			$date = $item->get_date( 'U' );
 
 			if ( $date ) {
-				if ( $date_stamp = strtotime( $date ) )
-					$date = ' <span class="rss-date">' . date_i18n( get_option( 'date_format' ), $date_stamp ) . '</span>';
-				else
-					$date = '';
+				$date = ' <span class="rss-date">' . date_i18n( get_option( 'date_format' ), $date ) . '</span>';
 			}
 		}
 
@@ -857,8 +1087,10 @@ function wp_widget_rss_output( $rss, $args = array() ) {
 
 		if ( $link == '' ) {
 			echo "<li>$title{$date}{$summary}{$author}</li>";
+		} elseif ( $show_summary ) {
+			echo "<li><a class='rsswidget' href='$link'>$title</a>{$date}{$summary}{$author}</li>";
 		} else {
-			echo "<li><a class='rsswidget' href='$link' title='$desc'>$title</a>{$date}{$summary}{$author}</li>";
+			echo "<li><a class='rsswidget' href='$link'>$title</a>{$date}{$author}</li>";
 		}
 	}
 	echo '</ul>';
@@ -866,8 +1098,6 @@ function wp_widget_rss_output( $rss, $args = array() ) {
 	unset($rss);
 }
 
-
-
 /**
  * Display RSS widget options form.
  *
@@ -881,56 +1111,58 @@ function wp_widget_rss_output( $rss, $args = array() ) {
  * @param array $inputs Override default display options.
  */
 function wp_widget_rss_form( $args, $inputs = null ) {
-
 	$default_inputs = array( 'url' => true, 'title' => true, 'items' => true, 'show_summary' => true, 'show_author' => true, 'show_date' => true );
 	$inputs = wp_parse_args( $inputs, $default_inputs );
-	extract( $args );
-	extract( $inputs, EXTR_SKIP);
 
-	$number = esc_attr( $number );
-	$title  = esc_attr( $title );
-	$url    = esc_url( $url );
-	$items  = (int) $items;
-	if ( $items < 1 || 20 < $items )
-		$items  = 10;
-	$show_summary   = (int) $show_summary;
-	$show_author    = (int) $show_author;
-	$show_date      = (int) $show_date;
+	$args['number'] = esc_attr( $args['number'] );
+	$args['title'] = isset( $args['title'] ) ? esc_attr( $args['title'] ) : '';
+	$args['url'] = isset( $args['url'] ) ? esc_url( $args['url'] ) : '';
+	$args['items'] = isset( $args['items'] ) ? (int) $args['items'] : 0;
+
+	if ( $args['items'] < 1 || 20 < $args['items'] ) {
+		$args['items'] = 10;
+	}
 
-	if ( !empty($error) )
-		echo '<p class="widget-error"><strong>' . sprintf( __('RSS Error: %s'), $error) . '</strong></p>';
+	$args['show_summary']   = isset( $args['show_summary'] ) ? (int) $args['show_summary'] : (int) $inputs['show_summary'];
+	$args['show_author']    = isset( $args['show_author'] ) ? (int) $args['show_author'] : (int) $inputs['show_author'];
+	$args['show_date']      = isset( $args['show_date'] ) ? (int) $args['show_date'] : (int) $inputs['show_date'];
+
+	if ( ! empty( $args['error'] ) ) {
+		echo '<p class="widget-error"><strong>' . sprintf( __( 'RSS Error: %s' ), $args['error'] ) . '</strong></p>';
+	}
 
 	if ( $inputs['url'] ) :
 ?>
-	<p><label for="rss-url-<?php echo $number; ?>"><?php _e('Enter the RSS feed URL here:'); ?></label>
-	<input class="widefat" id="rss-url-<?php echo $number; ?>" name="widget-rss[<?php echo $number; ?>][url]" type="text" value="<?php echo $url; ?>" /></p>
+	<p><label for="rss-url-<?php echo $args['number']; ?>"><?php _e( 'Enter the RSS feed URL here:' ); ?></label>
+	<input class="widefat" id="rss-url-<?php echo $args['number']; ?>" name="widget-rss[<?php echo $args['number']; ?>][url]" type="text" value="<?php echo $args['url']; ?>" /></p>
 <?php endif; if ( $inputs['title'] ) : ?>
-	<p><label for="rss-title-<?php echo $number; ?>"><?php _e('Give the feed a title (optional):'); ?></label>
-	<input class="widefat" id="rss-title-<?php echo $number; ?>" name="widget-rss[<?php echo $number; ?>][title]" type="text" value="<?php echo $title; ?>" /></p>
+	<p><label for="rss-title-<?php echo $args['number']; ?>"><?php _e( 'Give the feed a title (optional):' ); ?></label>
+	<input class="widefat" id="rss-title-<?php echo $args['number']; ?>" name="widget-rss[<?php echo $args['number']; ?>][title]" type="text" value="<?php echo $args['title']; ?>" /></p>
 <?php endif; if ( $inputs['items'] ) : ?>
-	<p><label for="rss-items-<?php echo $number; ?>"><?php _e('How many items would you like to display?'); ?></label>
-	<select id="rss-items-<?php echo $number; ?>" name="widget-rss[<?php echo $number; ?>][items]">
+	<p><label for="rss-items-<?php echo $args['number']; ?>"><?php _e( 'How many items would you like to display?' ); ?></label>
+	<select id="rss-items-<?php echo $args['number']; ?>" name="widget-rss[<?php echo $args['number']; ?>][items]">
 <?php
-		for ( $i = 1; $i <= 20; ++$i )
-			echo "<option value='$i' " . ( $items == $i ? "selected='selected'" : '' ) . ">$i</option>";
+		for ( $i = 1; $i <= 20; ++$i ) {
+			echo "<option value='$i' " . selected( $args['items'], $i, false ) . ">$i</option>";
+		}
 ?>
 	</select></p>
 <?php endif; if ( $inputs['show_summary'] ) : ?>
-	<p><input id="rss-show-summary-<?php echo $number; ?>" name="widget-rss[<?php echo $number; ?>][show_summary]" type="checkbox" value="1" <?php if ( $show_summary ) echo 'checked="checked"'; ?>/>
-	<label for="rss-show-summary-<?php echo $number; ?>"><?php _e('Display item content?'); ?></label></p>
+	<p><input id="rss-show-summary-<?php echo $args['number']; ?>" name="widget-rss[<?php echo $args['number']; ?>][show_summary]" type="checkbox" value="1" <?php checked( $args['show_summary'] ); ?> />
+	<label for="rss-show-summary-<?php echo $args['number']; ?>"><?php _e( 'Display item content?' ); ?></label></p>
 <?php endif; if ( $inputs['show_author'] ) : ?>
-	<p><input id="rss-show-author-<?php echo $number; ?>" name="widget-rss[<?php echo $number; ?>][show_author]" type="checkbox" value="1" <?php if ( $show_author ) echo 'checked="checked"'; ?>/>
-	<label for="rss-show-author-<?php echo $number; ?>"><?php _e('Display item author if available?'); ?></label></p>
+	<p><input id="rss-show-author-<?php echo $args['number']; ?>" name="widget-rss[<?php echo $args['number']; ?>][show_author]" type="checkbox" value="1" <?php checked( $args['show_author'] ); ?> />
+	<label for="rss-show-author-<?php echo $args['number']; ?>"><?php _e( 'Display item author if available?' ); ?></label></p>
 <?php endif; if ( $inputs['show_date'] ) : ?>
-	<p><input id="rss-show-date-<?php echo $number; ?>" name="widget-rss[<?php echo $number; ?>][show_date]" type="checkbox" value="1" <?php if ( $show_date ) echo 'checked="checked"'; ?>/>
-	<label for="rss-show-date-<?php echo $number; ?>"><?php _e('Display item date?'); ?></label></p>
+	<p><input id="rss-show-date-<?php echo $args['number']; ?>" name="widget-rss[<?php echo $args['number']; ?>][show_date]" type="checkbox" value="1" <?php checked( $args['show_date'] ); ?>/>
+	<label for="rss-show-date-<?php echo $args['number']; ?>"><?php _e( 'Display item date?' ); ?></label></p>
 <?php
 	endif;
 	foreach ( array_keys($default_inputs) as $input ) :
 		if ( 'hidden' === $inputs[$input] ) :
 			$id = str_replace( '_', '-', $input );
 ?>
-	<input type="hidden" id="rss-<?php echo $id; ?>-<?php echo $number; ?>" name="widget-rss[<?php echo $number; ?>][<?php echo $input; ?>]" value="<?php echo $$input; ?>" />
+	<input type="hidden" id="rss-<?php echo $id; ?>-<?php echo $args['number']; ?>" name="widget-rss[<?php echo $args['number']; ?>][<?php echo $input; ?>]" value="<?php echo $args[ $input ]; ?>" />
 <?php
 		endif;
 	endforeach;
@@ -956,11 +1188,11 @@ function wp_widget_rss_process( $widget_rss, $check_feed = true ) {
 	$items = (int) $widget_rss['items'];
 	if ( $items < 1 || 20 < $items )
 		$items = 10;
-	$url           = esc_url_raw(strip_tags( $widget_rss['url'] ));
-	$title         = trim(strip_tags( $widget_rss['title'] ));
-	$show_summary  = isset($widget_rss['show_summary']) ? (int) $widget_rss['show_summary'] : 0;
-	$show_author   = isset($widget_rss['show_author']) ? (int) $widget_rss['show_author'] :0;
-	$show_date     = isset($widget_rss['show_date']) ? (int) $widget_rss['show_date'] : 0;
+	$url           = esc_url_raw( strip_tags( $widget_rss['url'] ) );
+	$title         = isset( $widget_rss['title'] ) ? trim( strip_tags( $widget_rss['title'] ) ) : '';
+	$show_summary  = isset( $widget_rss['show_summary'] ) ? (int) $widget_rss['show_summary'] : 0;
+	$show_author   = isset( $widget_rss['show_author'] ) ? (int) $widget_rss['show_author'] :0;
+	$show_date     = isset( $widget_rss['show_date'] ) ? (int) $widget_rss['show_date'] : 0;
 
 	if ( $check_feed ) {
 		$rss = fetch_feed($url);
@@ -988,13 +1220,12 @@ function wp_widget_rss_process( $widget_rss, $check_feed = true ) {
  */
 class WP_Widget_Tag_Cloud extends WP_Widget {
 
-	function WP_Widget_Tag_Cloud() {
-		$widget_ops = array( 'description' => __( "Your most used tags in cloud format") );
-		$this->WP_Widget('tag_cloud', __('Tag Cloud'), $widget_ops);
+	public function __construct() {
+		$widget_ops = array( 'description' => __( "A cloud of your most used tags.") );
+		parent::__construct('tag_cloud', __('Tag Cloud'), $widget_ops);
 	}
 
-	function widget( $args, $instance ) {
-		extract($args);
+	public function widget( $args, $instance ) {
 		$current_taxonomy = $this->_get_current_taxonomy($instance);
 		if ( !empty($instance['title']) ) {
 			$title = $instance['title'];
@@ -1006,31 +1237,48 @@ class WP_Widget_Tag_Cloud extends WP_Widget {
 				$title = $tax->labels->name;
 			}
 		}
-		$title = apply_filters('widget_title', $title, $instance, $this->id_base);
 
-		echo $before_widget;
-		if ( $title )
-			echo $before_title . $title . $after_title;
-		echo '<div>';
-		wp_tag_cloud( apply_filters('widget_tag_cloud_args', array('taxonomy' => $current_taxonomy) ) );
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
+
+		echo $args['before_widget'];
+		if ( $title ) {
+			echo $args['before_title'] . $title . $args['after_title'];
+		}
+		echo '<div class="tagcloud">';
+
+		/**
+		 * Filter the taxonomy used in the Tag Cloud widget.
+		 *
+		 * @since 2.8.0
+		 * @since 3.0.0 Added taxonomy drop-down.
+		 *
+		 * @see wp_tag_cloud()
+		 *
+		 * @param array $current_taxonomy The taxonomy to use in the tag cloud. Default 'tags'.
+		 */
+		wp_tag_cloud( apply_filters( 'widget_tag_cloud_args', array(
+			'taxonomy' => $current_taxonomy
+		) ) );
+
 		echo "</div>\n";
-		echo $after_widget;
+		echo $args['after_widget'];
 	}
 
-	function update( $new_instance, $old_instance ) {
+	public function update( $new_instance, $old_instance ) {
 		$instance['title'] = strip_tags(stripslashes($new_instance['title']));
 		$instance['taxonomy'] = stripslashes($new_instance['taxonomy']);
 		return $instance;
 	}
 
-	function form( $instance ) {
+	public function form( $instance ) {
 		$current_taxonomy = $this->_get_current_taxonomy($instance);
 ?>
 	<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:') ?></label>
 	<input type="text" class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" value="<?php if (isset ( $instance['title'])) {echo esc_attr( $instance['title'] );} ?>" /></p>
 	<p><label for="<?php echo $this->get_field_id('taxonomy'); ?>"><?php _e('Taxonomy:') ?></label>
 	<select class="widefat" id="<?php echo $this->get_field_id('taxonomy'); ?>" name="<?php echo $this->get_field_name('taxonomy'); ?>">
-	<?php foreach ( get_object_taxonomies('post') as $taxonomy ) :
+	<?php foreach ( get_taxonomies() as $taxonomy ) :
 				$tax = get_taxonomy($taxonomy);
 				if ( !$tax->show_tagcloud || empty($tax->labels->name) )
 					continue;
@@ -1040,7 +1288,7 @@ class WP_Widget_Tag_Cloud extends WP_Widget {
 	</select></p><?php
 	}
 
-	function _get_current_taxonomy($instance) {
+	public function _get_current_taxonomy($instance) {
 		if ( !empty($instance['taxonomy']) && taxonomy_exists($instance['taxonomy']) )
 			return $instance['taxonomy'];
 
@@ -1055,19 +1303,20 @@ class WP_Widget_Tag_Cloud extends WP_Widget {
  */
  class WP_Nav_Menu_Widget extends WP_Widget {
 
-	function WP_Nav_Menu_Widget() {
-		$widget_ops = array( 'description' => __('Use this widget to add one of your custom menus as a widget.') );
-		parent::WP_Widget( 'nav_menu', __('Custom Menu'), $widget_ops );
+	public function __construct() {
+		$widget_ops = array( 'description' => __('Add a custom menu to your sidebar.') );
+		parent::__construct( 'nav_menu', __('Custom Menu'), $widget_ops );
 	}
 
-	function widget($args, $instance) {
+	public function widget($args, $instance) {
 		// Get menu
-		$nav_menu = wp_get_nav_menu_object( $instance['nav_menu'] );
+		$nav_menu = ! empty( $instance['nav_menu'] ) ? wp_get_nav_menu_object( $instance['nav_menu'] ) : false;
 
 		if ( !$nav_menu )
 			return;
 
-		$instance['title'] = apply_filters('widget_title', $instance['title'], $instance, $this->id_base);
+		/** This filter is documented in wp-includes/default-widgets.php */
+		$instance['title'] = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'], $instance, $this->id_base );
 
 		echo $args['before_widget'];
 
@@ -1079,18 +1328,23 @@ class WP_Widget_Tag_Cloud extends WP_Widget {
 		echo $args['after_widget'];
 	}
 
-	function update( $new_instance, $old_instance ) {
-		$instance['title'] = strip_tags( stripslashes($new_instance['title']) );
-		$instance['nav_menu'] = (int) $new_instance['nav_menu'];
+	public function update( $new_instance, $old_instance ) {
+		$instance = array();
+		if ( ! empty( $new_instance['title'] ) ) {
+			$instance['title'] = strip_tags( stripslashes($new_instance['title']) );
+		}
+		if ( ! empty( $new_instance['nav_menu'] ) ) {
+			$instance['nav_menu'] = (int) $new_instance['nav_menu'];
+		}
 		return $instance;
 	}
 
-	function form( $instance ) {
+	public function form( $instance ) {
 		$title = isset( $instance['title'] ) ? $instance['title'] : '';
 		$nav_menu = isset( $instance['nav_menu'] ) ? $instance['nav_menu'] : '';
 
 		// Get menus
-		$menus = get_terms( 'nav_menu', array( 'hide_empty' => false ) );
+		$menus = wp_get_nav_menus();
 
 		// If no menus exists, direct the user to go and create some.
 		if ( !$menus ) {
@@ -1105,10 +1359,12 @@ class WP_Widget_Tag_Cloud extends WP_Widget {
 		<p>
 			<label for="<?php echo $this->get_field_id('nav_menu'); ?>"><?php _e('Select Menu:'); ?></label>
 			<select id="<?php echo $this->get_field_id('nav_menu'); ?>" name="<?php echo $this->get_field_name('nav_menu'); ?>">
+				<option value="0"><?php _e( '&mdash; Select &mdash;' ) ?></option>
 		<?php
 			foreach ( $menus as $menu ) {
-				$selected = $nav_menu == $menu->term_id ? ' selected="selected"' : '';
-				echo '<option'. $selected .' value="'. $menu->term_id .'">'. $menu->name .'</option>';
+				echo '<option value="' . $menu->term_id . '"'
+					. selected( $nav_menu, $menu->term_id, false )
+					. '>'. esc_html( $menu->name ) . '</option>';
 			}
 		?>
 			</select>
@@ -1135,7 +1391,8 @@ function wp_widgets_init() {
 
 	register_widget('WP_Widget_Archives');
 
-	register_widget('WP_Widget_Links');
+	if ( get_option( 'link_manager_enabled' ) )
+		register_widget('WP_Widget_Links');
 
 	register_widget('WP_Widget_Meta');
 
@@ -1155,7 +1412,12 @@ function wp_widgets_init() {
 
 	register_widget('WP_Nav_Menu_Widget');
 
-	do_action('widgets_init');
+	/**
+	 * Fires after all default WordPress widgets have been registered.
+	 *
+	 * @since 2.2.0
+	 */
+	do_action( 'widgets_init' );
 }
 
 add_action('init', 'wp_widgets_init', 1);